A device for detecting the impermeability of concrete

Abstract

The application discloses a kind of concrete impermeability detection devices, belong to concrete impermeability detection technical field, a kind of concrete impermeability detection device, including lower detection machine body, its upper portion is equipped with detection table, and the hollow area is formed in the middle part of detection table, and the inner wall of hollow area is equipped with bottom sealing ring and water inlet;Alignment buffer mechanism, installation is in lower detection machine body, including damping spring, fixed plate and alignment ring, and alignment ring is correspondingly arranged with detection table;Alignment plate, rotation is connected on alignment ring, including plate body and rotating part, and plate body keeps inclined state by torsional spring;Upper detection machine body, including detection cylinder and telescopic drive assembly, and the inner periphery of detection cylinder is provided with alignment slot and placing groove, and the alignment slot is equipped with pressure component, and the placing groove is preinstalled sealing ring;Detection cylinder is linked with lower detection machine body by telescopic drive assembly.It can realize the improvement of sealing property, and concrete is automatically aligned and matched detection cylinder, and improve work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete impermeability detection, and more particularly to a concrete impermeability detection device. BACKGROUND

[0002] Anti-permeable concrete is a kind of concrete material with good impermeability, mainly used to prevent water and other liquids from penetrating into buildings or structures. This kind of concrete reduces the penetration channel and improves the impermeability by increasing the compactness and improving the pore structure of the concrete. There are two main methods to improve the performance of anti-permeable concrete: one is to adjust the mix proportion of concrete, and the other is to use air-entraining admixtures. Adjusting the mix proportion of concrete can be achieved by reducing the water-cement ratio, selecting appropriate types and strength grades of cement, etc. Using air-entraining admixtures can produce unconnected air bubbles in the concrete, cut off the capillary channel, and change the pore structure, thereby improving the impermeability of the concrete.

[0003] In the prior art, the concrete block needs to be placed in the detection cylinder of the detector, and the size of the detection cylinder and the concrete block needs to be matched. The concrete block needs to be manually moved to correspond to the detection cylinder. The weight of the concrete block is heavy, and it is laborious to move and adjust the position, which reduces the efficiency and makes the operator easily tired. In the prior art, a detachable detection cylinder is often used to facilitate the installation of the concrete block. However, the concrete block and the detection cylinder still need to be manually adjusted to correspond to the instrument position. After the concrete block and the detection cylinder are manually adjusted to correspond to each other, the concrete block needs to be placed in the detection cylinder. Under the action of gravity, the concrete block is easy to hit the bottom of the detection cylinder, which causes the concrete block to break and affects the accuracy of the impermeability detection data. It is also troublesome to take out the concrete block that has completely entered the detection cylinder, which requires disassembling the detection cylinder, thus reducing the efficiency and being time-consuming and laborious. Finally, the existing concrete needs to be sleeved with a sealing ring before being placed in the detection cylinder to enhance the sealing performance of the concrete in the detection cylinder. However, after the sealing ring is sleeved, the friction of the concrete entering the detection cylinder increases, which requires more force to make the concrete enter the detection cylinder. Meanwhile, the sealing ring is also prone to wear and tear, which reduces the sealing performance. SUMMARY

[0004] In view of the problems in the prior art, the present application aims to provide a concrete impermeability detection device that can improve the sealing performance and automatically match the detection cylinder with the concrete, thereby improving the work efficiency.

[0005] To solve the above problems, the present application adopts the following technical solutions.

[0006] The utility model provides a kind of concrete impermeability detection device, including lower detection body, its upper part is equipped with detection table, the hollow area is formed in the middle of the detection table, the inner wall of the hollow area is equipped with bottom sealing ring and water injection port;Alignment buffer mechanism is installed on the lower detection body, including damping spring, fixed plate and alignment ring, the alignment ring is correspondingly arranged with detection table, and buffer movement in height direction is realized by the damping spring;Alignment plate is rotatably connected on the alignment ring, including plate body and rotating part, the plate body is kept in inclined state by torsional spring, and it is rotated to vertical state under the action of concrete gravity to guide accurate alignment of concrete;Upper detection body includes detection cylinder and telescopic drive assembly, the inner periphery of the detection cylinder is provided with alignment slot and placing groove, the alignment slot is equipped with pressure component, and the placing groove is preinstalled with sealing ring;Wherein, the alignment plate is embedded in alignment slot and triggers pressure component in vertical state, so that the sealing ring is released from placing groove and abuts against the outer periphery of concrete, realizes sealing;The detection cylinder is linked with lower detection body by telescopic drive assembly, and automatic alignment and mold sealing are completed.

[0007] Further, the alignment ring of the alignment buffer mechanism is provided with a limiting hole and an alignment plate slot, the limiting hole is matched with the limiting column of the detection table, and the alignment plate slot is matched with the shape of the plate body of the alignment plate, so as to realize multi-stage limiting during the buffering process.

[0008] Further, the pressure component includes a pressure block, a sliding rod and a first spring, the sliding rod connects the pressure block and the movable cavity, and the first spring is sleeved on the outer periphery of the sliding rod.

[0009] Further, the sealing ring releasing device is an electric control telescopic assembly, which includes a pressure sensor, an electric control driving part and a telescopic limiting piece, the pressure sensor is linked with the trigger rod, and when the pressure reaches a threshold value, the telescopic limiting piece is controlled to retract, so as to release the blocking of the sealing ring.

[0010] Further, the sealing ring releasing device is a mechanical limiting piece assembly, which includes a trigger part, a rotating rod and a limiting piece, the trigger rod presses the trigger part to rotate, so as to drive the limiting piece to retract into the reset cavity to release the sealing ring.

[0011] Further, the opening diameter of the placing groove formed in the inner wall of the detection cylinder is smaller than the natural state diameter of the sealing ring, and the overall diameter of the placing groove is larger than the natural state diameter of the sealing ring, so as to ensure that the sealing ring is tightly fitted with the inner wall of the detection cylinder after rebound.

[0012] Further, the outer wall of the detection cylinder is provided with a limiting groove matched with the limiting column, and the limiting groove and the limiting hole jointly act to ensure the accurate alignment of the detection cylinder and the detection table.

[0013] Further, the curvature of the plate body of the alignment plate is consistent with the curvature of the inner wall of the detection table and the inner wall of the detection cylinder, so as to form a continuous sealing surface in the vertical state.

[0014] Further, the telescopic drive assembly includes an electric control or hydraulic drive device, and the output end of the device is connected with the upper detection machine body, so as to control the lifting speed and pressure of the detection cylinder.

[0015] Further, the water injection port is located at the center of the hollow area of the detection table and is communicated with an external water pump, so as to apply water pressure to the concrete to detect the impermeability.

[0016] Compared with the prior art, the advantages of the present application are:

[0017] The present application significantly improves the efficiency and accuracy of the detection of the impermeability of concrete through the optimization of the structural design and the synergistic effect of the functional modules. Specifically, the device adopts the linkage design of the alignment buffer mechanism and the alignment plate, uses the damping spring to reduce the impact force when the concrete falls, and combines the alignment plate controlled by the torsional spring to automatically change from the inclined state to the vertical state under the action of gravity, so as to realize the accurate alignment of the concrete and the detection cylinder, avoid the tediousness of manual adjustment, and avoid the damage of the concrete caused by the collision. The alignment groove arranged in the detection cylinder cooperates with the pressure component, the pressure block is triggered to move when the alignment plate is embedded in the alignment groove, the linkage trigger rod is triggered through the sliding rod, the sealing ring release device (electric telescopic assembly or mechanical limiting piece assembly) is driven, the sealing ring preloaded in the placement groove is automatically rebounded and tightly attached to the outer periphery of the concrete, which not only reduces the friction of the installation of the traditional sealing ring, but also improves the sealing reliability and durability. In addition, the detection cylinder and the detection table are matched through multiple levels of limiting grooves, limiting holes and limiting columns, so as to ensure the alignment accuracy during the sealing process, and the opening size design of the placement groove (smaller than the natural diameter of the sealing ring but the overall groove diameter is larger) further guarantees the rebound tension and sealing effect of the sealing ring after release. The device also realizes the automatic lifting of the detection cylinder through the telescopic drive assembly, cooperates with the center positioning of the water injection port and the linkage of the water pump, and can accurately apply water pressure to complete the impermeability test. The overall scheme solves the core problems such as low manual operation efficiency, easy wear of the sealing ring and easy damage of the concrete in the prior art through the synergy of the mechanical structure and the control system, realizes the full automation, high precision and high reliability of the detection process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0019] Figure 2 is an enlarged structural schematic diagram of position A in the present application Figure 1

[0020] Figure 3 is a schematic diagram of the rear side of the present application and a partially enlarged view;

[0021] ​Figure 4 It is the schematic diagram of the three-dimensional structure of the alignment plate of the present application;

[0022] Figure 5 It is the schematic diagram of the side view of the three-dimensional structure of the present application;

[0023] Figure 6 It is the schematic diagram of the enlarged structure at B in the present application; Figure 5

[0024] Figure 7 It is the schematic diagram of the partial cross-sectional structure of the present application;

[0025] Figure 8 It is the schematic diagram of the enlarged structure at C in the present application; Figure 7

[0026] Figure 9 It is the schematic diagram of the enlarged structure at D in the present application; Figure 7

[0027] Figure 10 It is the schematic diagram of the partial cross-sectional structure of the embodiment 2 of the present application;

[0028] Figure 11 It is the schematic diagram of the enlarged structure at E in the present application; Figure 10

[0029] Figure 12 It is the schematic diagram of the partial cross-sectional structure of the embodiment 2 of the present application;

[0030] Figure 13 It is the schematic diagram of the enlarged structure at F in the present application. Figure 12

[0031] Explanation of the reference numerals in the drawings:

[0032] The lower detection machine body 1, the control panel 11, the control knob 111, the detection table 12, the limiting column 121, the alignment bottom groove 122, the bottom sealing ring 123, the water injection port 13, the alignment buffer mechanism 2, the damping spring 21, the fixed plate 22, the alignment ring 23, the limiting hole 231, the alignment plate groove 232, the rotating groove 233, the rotating cavity 234, the alignment plate 3, the rotating part 31, the torsional spring 311, the upper detection machine body 4, the detection cylinder 41, the alignment groove 411, the pressing block 411-1, the sliding rod 411-2, the first spring 411-3, the connecting plate 411-4, the trigger rod 411-5, the placement groove 412, the movable cavity 413, the pressing cavity 413-1, the reset cavity 413-2, the pressure sensor 414, the electric control telescopic assembly 415, the telescopic output end 415-1, the telescopic limiting sheet 415-2, the limiting sheet assembly 416, the trigger part 416-1, the rotating rod 416-2, the limiting sheet 416-3, the second spring 416-4, the telescopic driving assembly 42, the limiting groove 43. ​​​​​DETAILED DESCRIPTION

[0033] Embodiment 1

[0034] Please refer to Figures 1-9 A concrete impermeability detection device, comprising a lower detection machine body 1, a positioning buffer mechanism 2, a positioning plate 3 and an upper detection machine body 4. The lower detection machine body 1 is installed on a plane, which is the ground in this embodiment. The positioning buffer mechanism 2 is installed on the lower detection machine body 1 and has the ability to move in the height direction. The positioning plate 3 is installed on the positioning buffer mechanism 2 and is rotationally connected with the positioning buffer mechanism 2. The upper detection machine body 4 is installed on the lower detection machine body 1 and has the ability to move in the height direction, so that the upper detection machine body 4 moves towards the lower detection machine body 1.

[0035] Specifically, the lower detection machine body 1 comprises a machine box, a control panel 11, a detection table 12 and a water inlet 13. The machine box is installed on a plane, and a plurality of water pumps are arranged in the machine box and are in communication with the corresponding water inlets 13 to supply water to the water inlets 13. The control panel 11 is installed on the upper end side wall of the lower detection machine body 1, and a plurality of control knobs 111 are equidistantly arranged on the control panel 11 to control the corresponding water pumps to supply water and drain water to the corresponding water inlets 13. The detection table 12 is installed on the upper end of the lower detection machine body 1, and a plurality of detection tables 12 are installed on the lower detection machine body 1. A hollow part is formed in the middle of the detection table 12, and the hollow part is used to place concrete. The detection table 12 comprises a plurality of limiting columns 121 equidistantly arranged around the circumference, and a positioning groove 122 is formed in the inner wall of the hollow part between each limiting column 121, so that the opening of the positioning groove 122 is formed on the end face of the detection table 12. A bottom sealing ring 123 is arranged along the inner circumference of the bottom end of the hollow part, and the inner circumference of the bottom sealing ring 123 matches the outer circumference of the concrete, so that the concrete is placed in the hollow part and is sealed by the bottom sealing ring 123. The water inlet 13 is arranged in the hollow part of the detection table 12, and the water inlet 13 is located in the middle of the hollow part, so that the water inlet 13 is directed to the middle of the concrete for water impact detection when the concrete is placed.

[0036] Specifically, the alignment buffer mechanism 2 comprises a damping spring 21, a fixed plate 22 and an alignment ring 23. The damping spring 21 is installed between the plurality of detection tables 12 and is located in the middle of the end face of the lower detection machine body 1. When the alignment buffer mechanism 2 is pressed by concrete, the damping spring 21 slowly approaches the end face of the detection table 12 under the influence of damping. Under normal circumstances, the upper end face of the damping spring 21 is higher than the upper end face of the detection table 12. The fixed plate 22 is installed on the damping spring 21 and is erected on both sides of the lower detection machine body 1. Under normal circumstances, the fixed plate 22 is suspended on one side of the upper end of the detection table 12. The alignment ring 23 is correspondingly arranged with the plurality of detection tables 12, and the plurality of alignment rings 23 are fixedly connected with the side wall of the fixed plate 22, so that the damping spring 21 drives the alignment ring 23 to move in the height direction. The alignment ring 23 and the end face of the detection table 12 are matched with each other. Specifically, the alignment ring 23 comprises a limiting hole 231, an alignment plate groove 232, a rotating groove 233 and a rotating cavity 234. The limiting hole 231 is matched with and correspondingly arranged with the limiting column 121, so that when the alignment ring 23 abuts against the detection table 12, the limiting column 121 can pass through the limiting hole 231 for limiting. The alignment plate groove 232 is correspondingly arranged with the opening positions of the plurality of alignment bottom grooves 122, and the groove widths are matched with each other. The alignment plate groove 232 and the alignment bottom groove 122 are matched with the alignment plate 3, so that the alignment plate 3 can completely adhere to the groove. The rotating groove 233 is opened at the upper end of the alignment plate groove 232, and the opening depth of the rotating groove 233 is greater than that of the alignment plate groove 232. The rotating cavity 234 is opened at both sides of the rotating groove 233, and the rotating cavity 234 and the rotating groove 233 are communicated with each other.

[0037] Specifically, the alignment plate 3 comprises a plate body and a rotating part 31, the plate body wall and the inner wall arc of the alignment ring 23 are matched with each other, so that the plate body wall can completely match the inner wall of the alignment ring 23 when the alignment plate 3 is in a vertical state. The rotating part 31 is arranged at the back of the plate body wall, and the rotating part 31 is fixedly connected with the plate body wall. Rotating rods are arranged on both sides of the rotating part 31, the rotating rods and the rotating cavity 234 are matched with each other, and the rotating part 31 is embedded in the rotating groove 233, so that the rotating rods are embedded in the rotating cavity 234, and the rotating part 31 rotates in the rotating groove 233. A torsional spring 311 is further sleeved on the rotating rods on both sides of the rotating part 31, and the torsional spring 311 is arranged in the rotating groove 233, so as to control the resetting of the alignment plate 3 after rotation. Under normal circumstances, the alignment plate 3 remains in an inclined state, the lower end of the alignment plate 3 is close to the center of the alignment ring 23, and the upper end of the alignment plate 3 is open along the center of the alignment ring 23. It should be noted that when the concrete is placed on the alignment ring 23, the alignment plate 3 is in an inclined open state, at this time, due to the gravity of the concrete, the concrete will press the lower end of the alignment plate 3, so that the alignment plate 3 slowly changes from the open state to the state of being vertically attached to the alignment plate groove 232. At the same time, the gravity of the concrete will press the damping spring 21, so as to slow down the speed of the alignment ring 23 moving towards the detection table 12, and prevent the lower end of the concrete from being broken due to gravity. Due to the counter-rotating force of the torsional spring 311, the concrete slowly aligns in the plurality of alignment plates 3, so as to uniformly abut the inner circumferences of the alignment plates 3. Finally, when the alignment ring 23 moves on the detection table 12, the alignment plate 3 is completely embedded in the alignment bottom groove 122 and the alignment plate groove 232, and the concrete is also placed in the hollow part, and is limited by the alignment ring 23 and the alignment plate 3.

[0038] Specifically, the upper detection machine body 4 comprises detection barrels 41, a telescopic driving assembly 43 and limiting grooves 43, the detection barrels 41 are arranged corresponding to the positions of the plurality of detection tables 12 and the plurality of alignment rings 23 respectively, and the end faces of the detection barrels 41, the detection tables 12 and the alignment rings 23 are matched with each other. The telescopic driving assembly 43 is located at the side of the upper detection machine body 4, one end of the telescopic driving assembly 43 is fixedly connected with the upper detection machine body 4, and the other end is fixedly connected with the upper end of the lower detection machine body 1. The telescopic driving assembly 43 comprises a driving member and an output rod, the output end of the driving member is connected with the output rod, so that the driving member drives the output rod to move in the height direction. The limiting grooves 43 are arranged on the plurality of detection barrels 41, and the limiting grooves 43 are equidistantly arranged around the centers of the detection barrels 41, the limiting grooves 43 are arranged corresponding to the limiting columns 121 and the limiting holes 231 respectively, and are matched with each other, so that when the telescopic driving assembly 43 drives the detection barrels 41 to move towards the alignment rings 23, the limiting columns 121 can pass through the limiting holes 231 and enter the limiting grooves 43 to fasten and limit.

[0039] The inner circumferential wall of the detection cylinder 41 is provided with a plurality of alignment grooves 411. In this embodiment, the number of alignment grooves 411 is four, and the plurality of alignment grooves 411 are equidistantly arranged. The bottom end of the alignment groove 411 is provided with a corresponding pressing assembly, which comprises a pressing block 411-1, a sliding rod 411-2, a first spring 411-3, a connecting plate 411-4 and a trigger rod 411-5. Under normal circumstances, the first spring 411-3 remains in a natural state, and one end of the first spring 411-3 is fixedly connected with the pressing block 411-1, and the other end of the first spring 411-3 is fixedly connected with the bottom end wall of the alignment groove 411. One end of the sliding rod 411-2 is fixedly connected with the pressing block 411-1, and the other end of the sliding rod 411-2 penetrates the bottom wall of the alignment groove 411 and is slidably connected with the alignment groove 411. The first spring 411-3 is sleeved on the outer circumferential wall of the sliding rod 411-2, so that when the pressing block 411-1 is pressed, the first spring 411-3 presses the bottom wall of the alignment groove 411 and is compressed, and the sliding rod 411-2 is pressed to move outwardly toward the bottom wall of the alignment groove 411. It should be noted that when the first spring 411-3 is in the limit pressing position, the distance from the pressing block 411-1 to the opening of the alignment groove 411 matches the setting height above the rotating part 31 of the alignment plate 3. The inner circumferential wall of the detection cylinder 41 is provided with a placement groove 412 close to the bottom wall of the alignment groove 411. The inner circumferential wall of the placement groove 412 matches the sealing ring, the opening diameter of the placement groove 412 is smaller than the diameter of the sealing ring in a natural state, and the overall opening diameter of the placement groove 412 is greater than the overall diameter of the sealing ring in a natural state, so that when the sealing ring is placed in the placement groove 412, the sealing ring will rebound if there is no obstruction. The diameter of the sealing ring in a natural state matches the outer circumferential wall of the concrete, so that the sealing ring can rebound to the outer circumferential wall of the concrete and abut against the inner wall of the detection cylinder 41 for sealing. The bottom end of the alignment groove 411 and the placement groove 412 are provided with a movable cavity 413, and the sliding rod 411-2 penetrates the bottom wall of the alignment groove 411 and is located in the movable cavity 413. The other end of the sliding rod 411-2 is fixedly connected with the connecting plate 411-4, and the connecting plate 411-4 is slidably connected with the movable cavity 413. The trigger rod 411-5 is located away from the alignment groove 411, and the trigger rod 411-5 is fixedly connected with the connecting plate 411-4, so that the sliding rod 411-2 moves to drive the trigger rod 411-5 to move. The end of the movable cavity 413 away from the alignment groove 411 is provided with a pressure sensor 414, and when the pressing block 411-1 is pressed, the sliding rod 411-2 moves to drive the trigger rod 411-5 to move toward the pressure sensor 414. When the upper end of the alignment plate 3 is completely placed in the alignment groove 411, the trigger rod 411-5 completely abuts against the pressure sensor 414. One side of the pressure sensor 414 is provided with an electric control telescopic assembly 415, and the electric control telescopic assembly 415 is installed in the movable cavity 413.The electric control telescopic assembly 415 includes an electric control driving part, a telescopic output end 415-1 and a telescopic limiting sheet 415-2. The electric control driving part is in electrical signal connection with the pressure sensor 414. When the pressure sensor 414 is extruded by the trigger rod 411-5 and reaches the threshold value set by the pressure sensor 414, the pressure sensor 414 sends an electrical signal to the electric control driving part. The electric control driving part outputs at the telescopic output end 415-1, and the telescopic output end 415-1 drives the telescopic limiting sheet 415-2 to perform telescopic operation. Under normal circumstances (when the pressing block 411-1 is not extruded), the telescopic limiting sheet 415-2 penetrates through the wall of the movable cavity 413 to the placement groove 412 to block the sealing ring. It should be noted that the inner wall curvature of the alignment plate 3 is matched with the inner wall curvature of the detection table 12 and the inner wall curvature of the detection cylinder 41.

[0040] Working principle:

[0041] When the present scheme is used, first, the concrete is placed on the alignment ring at the upper end of the corresponding detection table. The alignment ring is surrounded by the alignment plate, which aligns the concrete with the hollow part of the detection table and buffers the downward pressure of the concrete gravity to reduce the gravity effect caused by the downward pressure of the concrete gravity. When the concrete is placed in the bottom sealing ring in the detection table, the upper detection machine body presses the detection cylinder corresponding to the detection table downward to seal the mold. In the process of pressing the upper detection machine body, the limiting groove on the detection cylinder corresponds to the limiting column and abuts against each other. At the same time, the alignment plate is pressed into a vertical state by the concrete and is inserted into the alignment groove, and the alignment plate extrudes the pressing block to make the trigger rod start the pressure sensor and retract the telescopic limiting sheet. The sealing ring placed in the placement groove is rebounded and tightly bound to the outer wall of the concrete to complete the sealing effect. It should be noted that the sealing ring is clamped in the placement groove in advance before operation and is limited by the telescopic limiting sheet.

[0042] Embodiment 2:

[0043] Please refer to Figures 10-13 A concrete impermeability detection device, which is different from embodiment 1. The movable cavity 413 is provided with a pressing cavity 413-1 near the lower end of the placement groove 412, and the pressing cavity 413-1 is in communication with the movable cavity 413. The movable cavity 413 is provided with a return cavity 413-2 near the side end of the placement groove 412, and the return cavity 413-2 is in communication with the movable cavity 413 and the placement groove 412.

[0044] Specifically, the movable cavity 413 is provided with a limiting sheet assembly 416, which is used to replace the pressure sensor 414 and the electrically controlled telescopic assembly 415 in the first embodiment. The limiting sheet assembly 416 comprises a trigger part 416-1, a rotating rod 416-2, a limiting sheet 416-3 and a second spring 416-4. The rotating rod 416-2 is arranged on both sides of the inner wall of the movable cavity 413 and is rotationally connected with the inner wall of the movable cavity 413. The trigger part 416-1 is sleeved on the rotating rod 416-2 and is rotationally connected with the rotating rod 416-2. The bottom end of the trigger part 416-1 is arranged in alignment with the trigger rod 411-5, so that the trigger rod 411-5 is pressed on the trigger part 416-1 when the trigger rod 411-5 moves. The second spring 416-4 is embedded in the pressing cavity 413-1, one end of the second spring 416-4 is fixedly connected with the trigger part 416-1, and the other end of the second spring 416-4 is fixedly connected with the bottom wall of the pressing cavity 413-1. When the trigger part 416-1 is pressed, the trigger part 416-1 rotates and the end part moves in the direction of the pressing cavity 413-1, and the second spring 416-4 is compressed. The limiting sheet 416-3 is located at the upper end of the trigger part 416-1, and the limiting sheet 416-3 is semicircular and made of ductile material. When the trigger part 416-1 is pressed and rotated, the limiting sheet 416-3 is recovered into the reset cavity 413-2 from the placing groove 412, so that the opening distance of the placing groove 412 is restored to provide the elastic recovery of the sealing ring.

[0045] Working principle:

[0046] When the alignment plate is used to extrude the pressing block, the subsequent process changes. First, the trigger rod presses the bottom end of the trigger part to compress the trigger part into the pressing cavity with the spring, and the trigger part is pressed to rotate on the rotating rod to move the upper end of the trigger part inward. When the upper end of the trigger part moves inward, the limiting sheet is driven to press tightly in the reset cavity to open the blocking of the opening direction of the placing groove, and then the limiting of the sealing ring is realized through the mechanical structure.

Claims

1. A device for detecting the impermeability of concrete, characterized in that, The utility model relates to a concrete detection device, including: a lower detection body (1) provided with a detection table (12) at the upper portion, a hollow area formed in the middle of the detection table (12), a bottom sealing ring (123) and a water injection port (13) provided on the inner wall of the hollow area; a positioning buffer mechanism (2) installed on the lower detection body (1), including a damping spring (21), a fixed plate (22) and a positioning ring (23), the positioning ring (23) is correspondingly arranged with the detection table (12), and the damping spring (21) is used to realize the buffer movement in the height direction; a positioning plate (3) rotatably connected to the positioning ring (23), including a plate body and a rotating part (31), the plate body is kept in an inclined state through a torsional spring (311) and is rotated to a vertical state under the action of the gravity of the concrete to guide the accurate positioning of the concrete; an upper detection body (4) including a detection cylinder (41) and a telescopic driving assembly (42), a positioning groove (411) and a placing groove (412) are formed on the inner wall of the detection cylinder (41), a pressing assembly is arranged in the positioning groove (411), and a sealing ring is prearranged in the placing groove (412); wherein, the positioning plate (3) is embedded in the positioning groove (411) and triggers the pressing assembly in the vertical state, so that the sealing ring is released from the placing groove (412) and abuts against the outer periphery of the concrete, and sealing is realized; the detection cylinder (41) is linked with the lower detection body (1) through the telescopic driving assembly (42), and automatic positioning and mold sealing are completed; the pressing assembly includes a pressing block (411-1), a sliding rod (411-2), a first spring (411-3), a connecting plate (411-4) and a trigger rod (411-5), one end of the sliding rod (411-2) is connected with the pressing block (411-1), the other end is connected with the trigger rod (411-5) through the connecting plate (411-4) arranged in the movable cavity (413), and the first spring (411-3) is sleeved on the outer periphery of the sliding rod (411-2); the pressing block (411-1) triggers the sealing ring release device after being pressed through the sliding rod (411-2); the sealing ring release device is an electric control telescopic assembly (415) including a pressure sensor (414), an electric control driving part and a telescopic limiting sheet (415-2), the pressure sensor (414) is linked with the trigger rod (411-5), and when the pressure reaches a threshold value, the telescopic limiting sheet (415-2) is controlled to retract, and the blocking of the sealing ring is released.

2. A device for detecting the impermeability of concrete, characterized in that The utility model relates to a concrete detection device, including: a lower detection body (1) provided with a detection table (12) at the upper portion, a hollow area formed in the middle of the detection table (12), a bottom sealing ring (123) and a water injection port (13) provided on the inner wall of the hollow area; a positioning buffer mechanism (2) installed on the lower detection body (1), including a damping spring (21), a fixed plate (22) and a positioning ring (23), the positioning ring (23) is correspondingly arranged with the detection table (12), and the damping spring (21) is used to realize the buffer movement in the height direction; A positioning plate (3) is rotationally connected to the positioning ring (23) and includes a plate body and a rotating part (31). The plate body is kept in an inclined state by a torsion spring (311) and is rotated to a vertical state under the gravity of the concrete to guide the accurate positioning of the concrete. The upper detection machine body (4) includes a detection cylinder (41) and a telescopic driving assembly (42). An inner periphery of the detection cylinder (41) is provided with a positioning groove (411) and a placement groove (412). The positioning groove (411) is provided with a pressing assembly. The placement groove (412) is pre-provided with a sealing ring. In the vertical state, the positioning plate (3) is embedded in the positioning groove (411) and triggers the pressing assembly, so that the sealing ring is released from the placement groove (412) and abuts against the outer periphery of the concrete, thereby achieving sealing. The detection cylinder (41) is linked with the lower detection machine body (1) through the telescopic driving assembly (42), thereby completing automatic positioning and mold sealing. The pressing assembly includes a pressing block (411-1), a sliding rod (411-2), a first spring (411-3), a connecting plate (411-4) and a triggering rod (411-5). One end of the sliding rod (411-2) is connected to the pressing block (411-1), and the other end is connected to the triggering rod (411-5) through the connecting plate (411-4) located in the movable cavity (413). The first spring (411-3) is sleeved on the outer periphery of the sliding rod (411-2). After the pressing block (411-1) is pressed, the sealing ring releasing device is triggered through the sliding rod (411-2). The sealing ring releasing device is a mechanical limiting sheet assembly (416) including a triggering part (416-1), a rotating rod (416-2) and a limiting sheet (416-3). The triggering rod (411-5) presses the triggering part (416-1) to make it rotate, thereby driving the limiting sheet (416-3) to retract into the reset cavity (413-2) to release the sealing ring.

3. The device for detecting the impermeability of concrete according to claim 1 or 2, characterized in that: The positioning ring (23) of the positioning buffer mechanism (2) is provided with a limiting hole (231) and a positioning plate groove (232). The limiting hole (231) is matched with the limiting column (121) of the detection table (12). The positioning plate groove (232) is matched with the shape of the plate body of the positioning plate (3), so as to realize multi-stage limiting during the buffering process.

4. The device for detecting the impermeability of concrete according to claim 1 or 2, characterized in that: The opening diameter of the placement groove (412) formed in the inner wall of the detection cylinder (41) is smaller than the natural state diameter of the sealing ring, and the overall diameter of the placement groove (412) is greater than the natural state diameter of the sealing ring, so as to ensure that the sealing ring is tightly fitted with the inner wall of the detection cylinder (41) after rebounding.

5. The apparatus for detecting permeability of concrete according to claim 1 or 2, characterized in that: The outer wall of the detection cylinder (41) is provided with a limiting groove (43) matched with the limiting column (121). The limiting groove (43) and the limiting hole (231) jointly act to ensure the accurate positioning of the detection cylinder (41) and the detection table (12).

6. The apparatus for detecting permeability of concrete according to claim 1 or 2, characterized in that: The curvature of the plate body of the positioning plate (3) is consistent with the curvature of the inner wall of the detection table (12) and the inner wall of the detection cylinder (41), so as to form a continuous sealing surface in the vertical state.

7. The apparatus for detecting permeability of concrete according to claim 1 or 2, characterized in that: The telescopic drive assembly (42) comprises an electric or hydraulic drive device, and an output end of the electric or hydraulic drive device is connected with the upper detection machine body (4) to control the lifting speed and pressure of the detection cylinder (41).

8. The apparatus for detecting permeability of concrete according to claim 1 or 2, characterized in that: The water injection port (13) is located at the center of the hollow area of the detection table (12) and is communicated with an external water pump, and is used for applying water pressure to the concrete to detect the impermeability.

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